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Cialis, a popular remedy for impotence, has now been approved by the Food and Drug Administration as a treatment for symptoms of benign prostatic hyperplasia. It's the ninth drug okayed for relieving those symptoms but the only one approved for both uses.

Federal officials are targeting California medical marijuana dispensaries closest to schools, parks, sports fields and other places where children are present.

NASA gives us a look at the center of the galaxy, in the form of an infrared image that penetrates the dust clouds that obscure the core in the visible spectrum. The result shows "the glow of hot hydrogen in space," the space agency says.

The Dalai Lama was forced to cancel a trip to South Africa this week for Desmond Tutu's 80th birthday celebration because he was not issued a visa. The news infuriated Tutu, who accused the government of being afraid to offend China, South Africa's largest trade partner.

A year ago, Darryl St. George left his post as a teacher on Long Island to become a Navy corpsman stationed in Afghanistan. Back in the U.S. until his next tour, St. George went back to his school hoping students and former colleagues would understand why he left.

The Arab League called an emergency meeting on Sunday, but stopped short of suspending Syria from the organization. Instead, it issued a call for President Bashar Assad to start a dialogue with his opposition.

The company said the resignation was personal, but it comes just after China arrested Walmart employees and forced it to shut down stores for allegedly mislabeling regular pork as organic.

Since beginning new, more rigorous security checks police have confiscated thousands of knives, screwdrivers and cans of pepper spray from visitors to Liberty Island.

John McDonough, director of Harvard's Center for Public Health Leadership, helped shape both the Massachusetts health reform plan and the national one. He spoke about how the plans stack up — and how former Gov. Mitt Romney might have trouble keeping his campaign pledge to let states opt out of the federal plan.

Some analysts say the smartphone could become the best-selling gadget in history, eclipsing the Xbox Kinect, which sold some eight million units in two months.